Three people including two teenagers were killed in southern Vietnam on Saturday as a truck hit nine vehicles.

The southbound truck from Hanoi hit another truck on National Highway 1A across Dong Nai Province that neighbors Ho Chi Minh City at around 6 p.m., throwing it across the highway. The truck then continued to slide and hit two passenger buses, another truck, four motorbikes and a bicycle.

The bicycle and motorbikes wound up under one of the buses.

Nguyen Le Phuong Giang and Le Nguyen Quynh Nhu, two 15-year-old students, died on the way to hospital after being thrown from their bicycle.

One of the motorists, a 43-year-old man whose identity has not been released, was immediately killed.

Three others were severely injured and have not been identified either.

Police are investigating the cause of the accident and looking for the truck driver, who fled the scene.